Part of a sealing device for a bottle



FIG. 1 is a top perspective view of a part of a sealing device for a bottle showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is a top plan view thereof. 

The ornamental design for a part of a sealing device for a bottle, as shown and described. 